With the improvement of the economic standard of living, people are paying more attention to health care and health, but some people in the health care but there are many misunderstandings. Myth 1: eat and drink enough to benefit health As the saying goes, “three points of hunger and cold to protect the peace,” this saying has some truth. Because of satiety and lack of exercise, it will cause excess energy, this will cause obesity, accelerate aging, triggering cardiovascular and cerebrovascular diseases. Studies have shown that the gastrointestinal secretion of a gastrointestinal hormones in a state of fullness, inhibit gastrointestinal movement, expanding gastrointestinal blood vessels, so that the gastrointestinal blood flow increases, while the heart, the brain and other important organs of the blood flow is reduced. Some data show that: eight minutes full is conducive to health. Myth two: after dinner walk to live to ninety-nine habit of walking after dinner this is a good habit, but immediately after dinner walk is not desirable. Because just after dinner gastrointestinal blood vessels are still in the congestive stage, and the heart, the brain and other vital organs of the blood flow is reduced, so immediately after dinner walk, easy to make the heart and brain and other vital organs of the ischemic phenomenon, and induced angina or cerebrovascular ischemia. Therefore, it is better to rest for one hour after dinner and then go out for a walk is more scientific. Misconception 3: smell the chicken dance Chinese people are more diligent, by the “one day plan is in the morning” influence, most people love to exercise have the habit of morning exercise. But early in the morning is not the more appropriate exercise time for middle-aged and elderly people. First of all, look at the external factors: First, plants at night to absorb oxygen, exhale carbon dioxide. Therefore, where there are many trees, carbon dioxide collects in the morning. Secondly, the night inversion layer appears more, resulting in the early morning air oxygen is not good. At night, the wind speed is small, hundreds of meters near the ground in the air inversion layer, the atmosphere is in a stable state, the pollutants stay above the surface, it is difficult to diffuse. In the fall, winter and spring, the near-surface inversion layer makes air pollutants most difficult to diffuse at around 6 a.m. Third, the cold stimulus itself can induce vasospasm, on the basis of the original lesions, triggering vascular embolism or infarction. Secondly, then look at the human body in the factors: due to a night without drinking water, the blood is very viscous in the morning, increasing the risk of vascular blockage; get up after the sympathetic nervous excitability increases, the heart rate is accelerated, the heart itself needs more blood; 9 ~ 10 a.m. is still the time of the day when blood pressure is the highest, and therefore the morning is a good time for stroke, infarction, medically referred to as “the devil’s time”, therefore, middle-aged and elderly people, especially at 6:00 am, air pollutants are most difficult to diffuse. Therefore, middle-aged and elderly people, especially those with cardiovascular and cerebrovascular disease risk factors and cardiovascular and cerebrovascular disease patients, should not do a larger amount of physical exercise in the morning. Morning can do a lighter exercise, such as doing radio gymnastics, playing tai chi, sword dance, walking and so on. So, when is the appropriate time to exercise? The best time is around 4-5 p.m., followed by 2-3 hours after the evening meal. Because at this time the human body’s adaptability and general coordination are stronger, especially the heart rate, blood pressure are more stable, the most suitable for physical exercise. From the external environment, this time the plant photosynthesis for a day, the oxygen content is more adequate, the temperature is also more moderate, conducive to exercise. If office workers can not exercise in the afternoon, you can exercise in the evening around 9 to 10 o’clock. Exercise at this time, can make the brain completely relaxed, relieve mental tension. Evening exercise can also consume more intake of calories, reduce the storage of fat at night. Myth 4: a cigarette after a meal, the race over the living God After eating, gastrointestinal motility increased, heartbeat breathing faster, blood circulation accelerated, at this time smoking, the human body on the absorption of harmful substances in the smoke is greatly enhanced, so that more chemical toxins inhaled into the human body. Experiments have proved that after meals, smoke a cigarette, than usually smoke 10 cigarettes of poisoning is also large. Myth 5: do not dare to eat a little fat Fat is an important part of the human body. Long-term eating a high-fat diet prone to cardiovascular disease, which is recognized by most people. However, a little not eat meat with fat is not conducive to health. Animal fat contains a substance that can prolong life, called alpha lipoprotein, that is, high-density lipoprotein, which not only does not promote atherosclerosis, on the contrary, can prevent cardiovascular disease. Animal fat is rich in vitamins, such as vitamin A, B2, B6, B12, E, is also indispensable to the human body. Brain lecithin and lecithin, which are indispensable for brain development, must also be obtained through the intake of fat. If children eat a low-fat diet for a long time, it will affect the growth and development of the brain and the whole body. Animal fat has a high calorie content, so for manual laborers, it is even more important not to eat fatty meat. Is the middle-aged and elderly people, in the daily diet to eat some fat meat, egg yolks and animal offal, in order to obtain the necessary nutrients, is also conducive to a long and healthy life. Myth six: two meals a day can lose weight Some women in order to be slim, only eat two meals a day, that this can lose weight. On the contrary, two meals a day people more capacity to get fat, Japanese sumo wrestlers is only eat two meals a day people, you want to be as fat as they are? Myth 7: the use of cod liver oil and calcium tablets to prevent and treat rickets The content of vitamin A in cod liver oil is 10 times that of vitamin D. The use of cod liver oil to prevent and treat rickets is prone to cause vitamin A toxicity in sick children. The right way is to use vitamin D plus calcium tablets to prevent and treat rickets. Myth 8: the old hen to make up for the body is the best years of old hen contains too much chicken oil, its muscle elastic fiber reduction, connective tissue aging, chicken rough, hard to cook for a long time rotten, not easy to gastrointestinal digestion and absorption. Raise a year of chicken, whether boiled, stewed are suitable, easy to cook and become crispy, meat is tender and tasty, nutrition is more pleasant. Myth 9: the more fish you eat, the better Fish fat contains unsaturated fatty acids, anti-atherosclerosis effect, so the prevention and treatment of cardiovascular diseases and enhance memory, vision protection, eliminate inflammation is quite beneficial. But eating fish is not more good, fish fatty acids containing 20 carbon-pentaenoic acid, which can effectively inhibit the role of platelet coagulation, long-term overdose of fish, platelet coagulation can be reduced and cause a variety of spontaneous bleeding, such as subcutaneous purpura, cerebral hemorrhage, and so on. Eskimos to eat fish-based, it has been found that although they almost no one suffers from coronary heart disease, cerebral thrombosis, but cerebral hemorrhage has become an important cause of their death. Myth 10: Drinking alcohol can enhance sexual function Alcohol has both an excitatory and inhibitory effect on the central nervous system. In the early stage, a small amount of alcohol can promote sexual excitement, as the saying goes, “wine strengthens the courage”. But long-term alcohol consumption will have an inhibitory effect, will only weaken the libido, resulting in impotence, premature ejaculation, ejaculation disorders, sexual intercourse can not, and ultimately lead to the loss of sexual function. Alcohol also directly affects the production of sperm cells, so that fertility is reduced, resulting in fetal deformities, the offspring. Tao Yuanming, a poet of the Jin Dynasty, loved to drink alcohol all his life and had five children who were either stupid or idiots, making him regret it. Myth 11: drinking alcohol can protect the cold Alcohol in the body combustion heat is very small, after drinking a warm feeling because alcohol can stimulate vasodilatation, speed up the metabolism, giving a kind of increase in the illusion of heat. At this time, the body heat dissipation accelerated, if the real supply of heat sugar, fat and protein supply is not, into the cold environment work or exercise, very easy to occur wind, cold, inviting to disease. Winter swimming people can not drink alcohol before entering the water, otherwise it will be very dangerous. People who work or exercise in the cold environment should eat more food containing sugar, fat and protein to increase calories. Myth 12: Give children to eat supplements for the body Many parents think that giving children to eat health products, tonic products, such as: bee milk, royal jelly, pollen, chicken embryo baby veggies, ginseng oral solution, etc., can make them get more nutrients, is conducive to the growth and development of a strong and sturdy. This is often counterproductive and clumsy. Because these health products, tonic in many of these products contain sex hormones, with the promotion and enhance the role of sexual function, children will take the phenomenon of precocious puberty, so parents are very embarrassed. Supplements can not just give children to eat, there are problems to consult a doctor. Misunderstanding thirteen: tea with boiling water tea with boiling water, will destroy a lot of nutrients in the tea, but also dissolve too much tannins and aromatic substances, so that the tea has a bitter and astringent flavor, reducing the health effects of tea. Bubble tea water temperature should generally be about 80 ℃, winter can be appropriately higher. Myth fourteen: chewing gum can be healthy teeth Some advertisements say that chewing gum can be healthy teeth, so many people eat chewing gum without rinsing their mouths, the result of chewing gum sugar will be fermented in the oral cavity acid, corrosion of the teeth to form dental caries. In addition, chewing gum contains sulfide, antioxidants, plasticizers and other additives, have a certain degree of toxicity, is not good for human health. Myth 15: often wear jeans jeans wearing close to the body, can outline the body shape of the line of beauty, presenting the masculinity, quite popular with young adults. However, jeans to the lower body wrapped too tight, easy to cause dermal neuritis, female pubic inflammation, male infertility, so should not be worn for a long time. There are many other misconceptions in people’s lives, health care and health care to talk about science, treatment and prevention of disease, wearing clothes and hats, living habits are to talk about science. Only believe in science, the formation of good habits, adhere to the correct health care method, in order to play the role of forging the body, enhance physical fitness, prevention of disease.